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With which constant velocity the disk rotates at a constant speed?
Linear
Does angular speed depend on distance?
when something moves with constant angular speed (w), as in a rotating disk, the speed (v) as you move away from the center depends on distance (r), but the angular speed does not. Mathematically, v = wr.
By what factor will the moment of inertia increase in the compact disck that is the same thickness as a current disk but twice the diameter?
16
What would happen if a disk one light second in circumference were to spin at 60 RPM?
60 revolutions per minute is one revolution per second.1 light second is the distance light travels in one second.What this means is that points on this hypothetical disk's perimeter would need to travel at the speed of light to satisfy your conditions. This cannot happen for anything that has mass.Bottom line: a disk this size could not spin at this speed.The answer to your question is that it would spin at the speed of light (It is hypothetical, so it doesn't matter that nothing can spin at that speed).The shear forces would be so high before it could accelerate significantly that the disk would cease being solid and would break into trillions of tiny pieces. There is an awful lot of inertia in the outer rim of a disk that large! If it were created already spinning at that speed (by some miracle) it would take a practically infinitesimal time for centrifugal forces to make it explode violently into trillions of tiny pieces.
How do explosive formed projectiles work?
Known as the Miznay-Schardin effect, a section of metal is shaped into a projectile by the force of an explosion. Also known as a platter charge, a metal disk with explosives on one side is turned from a disk into a bullet when the explosives are detonated, and driven forward at high speed at the same time.
What maintenance operation should be performed to prevent a slowdown in data access speed?
Disk defragmentation.
What is the difference between disk clean up and disk defragmentation?
Disk defragmentation organises the file structure of harddisk by gathering files that are stored in fragments & piecing them together to form a large fragments. It makes the drive function more quickly & reduce the amount of hops to read single file. Disk clean up will delete all the junk & temporary files & will increase the speed of ur computer by creating more space
Is a disk defragmenter a windows utility that is commonly used to format secondary devices?
No. It is a tool used to logically organise the files on a hard drive to increase access speed of these files when being accessed by a program. It has no association with formatting. Formatting is completely different from disk defragmentation. Many times files pulls out from their usual place, and defragmentation only puts them back to their places so that for the next time they can be accessed conveniently.
IS Disk Defragmenter is a Windows utility that is commonly used to format secondary devices?
No. It is a tool used to logically organise the files on a hard drive to increase access speed of these files when being accessed by a program. It has no association with formatting. Formatting is completely different from disk defragmentation. Many times files pulls out from their usual place, and defragmentation only puts them back to their places so that for the next time they can be accessed conveniently.
What is reorganizing a disk called?
reorganizing the disk Defragmentation actually reorganizes the disk.
What is gained by increasing the rotation speed of a disk or CD?
increase tranfer rate and decrease average access time
What are the main benefits of disk fragmentation in Windows?
There are a few potential benefits of doing a disk defrag regularly. It will improve the performance of the hard drive and speed up access to files. The files are organized more efficiently and space is created.
What reorganizes the data on a magnetic hard drive that you can access files more quickly?
An application called a disk defragmenter is the tool used to achieve this. However one could also specifically match the disk segment layout with the disk rotation speed as one sets up the disk or even build a RAID array to increase access speed.
When disk defragmenter is completed why does it use or takes storage space on that disk?
Defragmentation is the process of rewriting non-contiguous parts of a file to contiguous sectors on a disk for the purpose of increasing data access and retrieval speeds. Because FAT and NTFS disks can deteriorate and become badly fragmented over time, defragmentation is vital for optimal system performance.
With what speed does the hard disk store and access information?
that depends on the speed of your computer
What tool can you use to defragment your volumes by recopying fragmented files to contiguous space on the disk?
Disk Defragmentation
With what speed does the zip disk store and access information?
0.5mb
